21145668

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{42979}}^1$

素因数の和:43027

約数の個数: 24

約数和(自身を含む): 50544480

約数和(自身を除く): 29398812

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492, 42979, 85958, 128937, 171916, 257874, 515748, 1762139, 3524278, 5286417, 7048556, 10572834, 21145668]

約数ペア:

[(1, 21145668), (2, 10572834), (3, 7048556), (4, 5286417), (6, 3524278), (12, 1762139), (41, 515748), (82, 257874), (123, 171916), (164, 128937), (246, 85958), (492, 42979)]